Improvement in buckets for chain-pumps



n. r. STOW. Bucket for Chain-Pumps.

Patented Feb. 23,1875.

No.l60,l2 5.

W|TN:S(ES I j/ I lgVEN'ly'OR I v a ATTORNEYS THE GRAPHICC0.PNOTOrL|TM.39&4-Y PARK PLACEJLY- UNITED STATES PATENT Orrron.

DELORAINE F. STOW, OF HORSEHEADS, NEW YORK.

IMPROVEMENT IN BUCKETS FOR CHAIN-PUMPS.

Specification forming part of Letters Patent No. 160,125, dated February23, 1875 application filed June 6, 1874.

To all whom it may concern:

Be it known that I, DELORAINE F. STOW, of Horseheads, in the county ofOhemun g and State of New York, have invented a new and valuableImprovement in Chain-Pump Buckets; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to the annexed drawingsmaking a part of this specification, and to the letters and figures ofreference marked thereon.

Figure 1 of the drawings is a representation of a perspective view of mybucket, and Fig. 2 is a side view. Fig. 3 is a sectional view.

This invention has relation to buckets which are designed for use inchain-pumps; and it consists in an india-rubber shell of acylindroconical form, inclosin g a solid core, on the ends of which eyesare formed, whereby the required solidity is given to the conicalportion of the core, and the rubber is prevented from cracking when itbecomes hard from long use, as will be hereinafter explained more fully.

The following is a description of my improved bucket:

In the annexed drawings, A designates an india-rubber shell of acylindro-conical form that is to say, the portion a is cylindrical andfits the bore of the pump-tube, and the portion b is conical, with ahole through its apex. The bottom side of the shell A is beveledinwardly, so as to form a highly-elastic skirting, which will closelyaccommodate itself to the bore of the pump-tube. This elastic shell A isstretched on a solid metal cone, B, so that the skirting or cylindricalbottom portion a will extend below the base of cone B, and allow theelasticity above referred to. The cone B is construct-ed with eyes 0 con its upper and lower ends, for attaching the bucket to thechain-links, and through the skirting a a small hole, 6, is made forallowing the water in the pump-barrel to escape when the pump is not inoperation.

I am aware that a chain-pump bucket has heretofore been constructed,consisting of a metallic frustunr of a cone provided with flanges on itsends,between which is inserted a rubber ring, and I therefore lay noclaim to such invention, which is extremely liable to become inoperativeor bind in the pump-barrel, because the plane of the face of the ring isliable, in the operation of the device, to become oblique to thevertical axis of the pumpbarrel on account of the inequality of thefriction of the ring on the sides of the barrel, and ot' the play of thering between the flanges of the frustuin.

What I claim as new, and desire to secure by Letters Patent, is

The chain-pump bucket herein described, having the cylindro-conicalelastic shellA, fitted to the solid core B, substantially as and for thepurpose set forth.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

DELORAINE F. STOW.

Witnesses:

J. W. STARING, G. F. TOMLINEON.

